Air-permeable waterproof device

ABSTRACT

An air-permeable waterproof device comprises an air-permeable wall, an air vent wall, and a non-return piece. The air-permeable wall has air-permeable holes. The air vent wall has air vent holes and bumps. The air vent wall and the air-permeable wall are connected together to form a receiving room. The non-return piece is disposed in the receiving room. The air-permeable waterproof device is disposed on a shoe. Heat and moisture in the shoe are discharged out through the air-permeable holes and the air vent holes. Water in sumps on the ground will be blocked by the non-return piece and thus will not permeate into the shoe through the air vent holes to dampen the lining. Therefore, the inside of the shoe keeps nice and cool to let wearing of the shoe be comfortable and also avoid breeding of germs and foot diseases.

FIELD OF THE INVENTION

[0001] The present invention relates to an air-permeable waterproof device and, more particularly, to a device, which can let air pass through in a shoe, and also prevent water from entering.

BACKGROUND OF THE INVENTION

[0002] For everyday lives of people, wearing of shoes is inevitable except for the sleep time. No matter one is walking, running, jumping, working, or resting, his feet are usually sheathed in shoes. However, because the feet have skin like other parts of the human body, if they are enclosed in shoes for a long time, bad odors and germs caused by heat and moisture of the feet will arise due to lack of interflow of moisture with the exterior and difficult radiation of heat, letting the soles of feet be damp and thus easily infected. It is necessary for the soles of feet to contact natural air so as to keep comfortable and healthy. Therefore, under the principle that the feet be sheathed by shoes, it is necessary to interflow air in the shoe with exterior air in the design of shoes.

[0003]FIG. 1 shows a conventional air-permeable device of a shoe. The shoe 1 comprises a shoe sole 2 and a shoe vamp 3. The shoe sole 2 has an outer sole 20, whereupon a middle sole 21 is disposed. A lining 22 is disposed on the middle sole 21. The bottom edge of the shoe vamp 3 is connected with the shoe sole 2. The outer sole 20, the middle sole 21, and the lining 22 have connected sole air-permeable holes 23 and lining air holes 24. The shoe vamp 3 has vamp air-permeable holes 30. All these holes are used for interflow of air in the shoe 1 with exterior air.

[0004] In the above conventional air-permeable device of shoe, all the sole air-permeable holes and the vamp air-permeable holes penetrate through the inside of the shoe so that heat and moisture generated by the foot sole enclosed in the shoe is discharged out. Therefore, air in the shoe interflows with exterior air to avoid foot diseases because less germs breed at the lining. However, because the sole air-permeable holes and the vamp air-permeable holes directly penetrate through the inside of the shoe, although air in the shoe can be discharged out and exterior air can naturally flow into the shoe, water will also permeate into the shoe from the sole air-permeable holes and the vamp air-permeable holes when one walks on a wet ground or in a rainy day, letting the lining be damp and resulting in more dampness and worse odor of the foot. The lining will instead become a breeding ground of germs. Because the foot stays in a damp and cold environment, discomfort of the foot will arise, and related diseases will easily be caused. Moreover, the lifetime of use of the shoe will shorten.

[0005] Accordingly, the conventional air-permeable device of shoe has inconvenience and drawbacks in practical use. The present invention aims to resolve the problems in the prior art.

SUMMARY OF THE INVENTION

[0006] The primary object of the present invention is to provide an air-permeable waterproof device, which discharges air in a shoe out to keep the foot sole nice and cool and thus avoid breeding of germs.

[0007] Another object of the present invention is to provide an air-permeable waterproof device, whereby exterior water or rainwater do not enter into a shoe therethrough, hence keeping the foot sole dry and avoiding foot diseases.

[0008] Yet another object of the present invention is to provide an air-permeable waterproof device, whereby the lining of a shoe ventilates and do not be damp, hence keeping the foot comfortable and also lengthening the lifetime of use of the shoe.

[0009] To achieve the above objects, the present invention mainly provides an air-permeable waterproof device, which is disposed on a shoe. The shoe has a shoe sole, whose top edge is connected with a shoe vamp. The air-permeable waterproof device comprises an air-permeable wall, an air vent wall, and a non-return piece. The air-permeable wall has air-permeable holes. The air vent wall has air vent holes and bumps. The air vent wall and the air-permeable wall are connected together to form a receiving room. The non-return piece is disposed in the receiving room between the air-permeable wall and the air vent wall.

[0010] The various objects and advantages of the present invention will be more readily understood from the following detailed description when read in conjunction with the appended drawing, in which:

BRIEF DESCRIPTION OF THE DRAWINGS

[0011]FIG. 1 is diagram of a conventional air-permeable device of shoe;

[0012]FIG. 2 is an exploded perspective view of the present invention;

[0013]FIG. 3 is a perspective assembly view of the present invention;

[0014]FIG. 4 is a diagram showing flow of fluid in the present invention;

[0015]FIG. 5 is a diagram showing the situation that flow of fluid of is blocked in the present invention;

[0016]FIG. 6 is a cross-sectional view of the present invention applied to a shoe vamp;

[0017]FIG. 7 is a cross-sectional view of the present invention applied to a shoe sole; and

[0018]FIG. 8 is a bottom view of the present invention applied to a shoe sole.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] As shown in FIGS. 2 and 3, an air-permeable waterproof device of the present invention is disposed on a shoe 1. The shoe 1 has a shoe sole 2, whose top edge is connected with a shoe vamp 3. The air-permeable waterproof device comprises an air-permeable wall 4, an air vent wall 5, and a non-return piece 6.

[0020] The air-permeable wall 4 has air-permeable holes 40.

[0021] The air vent wall 5 has air vent holes 50 and bumps 51. The air-permeable wall 4 and the air vent wall 5 are connected together to form a receiving room 52.

[0022] The non-return piece 6 is disposed in the receiving room 52 between the air-permeable wall 4 and the air vent wall 5.

[0023] As shown in FIG. 4, the non-return piece 6 can move in the receiving room 52. When fluid enters into the receiving room 52 via the air-permeable holes 40, it pushes the non-return piece 6, which is shored up by the bumps 51 of the air vent wall 5 to maintain a passable gap 53 and thus do not contact the air vent wall 5. Therefore, the air vent holes 50 of the air vent wall 5 is not blocked by the non-return piece 6, and fluid is discharged from the passable gap 53 between the non-return piece 6 and the air vent wall 5 out of the receiving room 52 through the air vent holes 50.

[0024] As shown in FIG. 5, when fluid enters into the receiving room 52 from the air vent holes 50, it will push the non-return piece 6 to contact the air-permeable wall 4. Therefore, the air-permeable holes 40 of the air-permeable wall 4 will be blocked by the non-return piece 6 so that fluid do not flow out of the receiving room from the air-permeable holes 40.

[0025] As shown in FIG. 6, the air-permeable waterproof device is disposed on the shoe vamp 3 of the shoe 1. The shoe vamp 3 has vamp air-permeable holes corresponding to the air-permeable holes 40 of the air-permeable waterproof device. Heat and moisture in the shoe 1 is discharged from the air-permeable holes 40 out of the shoe 1 through the air vent holes 50. When it is raining, rainwater is blocked by the non-return piece 6 and do not permeate into the sole 1 through the air-permeable holes 40.

[0026] As shown in FIGS. 7 and 8, the air-permeable waterproof device is disposed at the shoe sole 2 of the shoe 1. The air-permeable waterproof device is integrally formed with the shoe sole 2, or can be installed and fixed at the shoe sole 2. Heat and moisture in the shoe 1 is discharged from the air-permeable holes 40 out of the shoe 1 through the air vent holes 50. When one is walking on a wet ground, because the non-return piece 6 blocks the air-permeable holes 40, water thus is blocked by the non-return piece 6 and do not permeate into the sole 1 through the air-permeable holes 40.

[0027] To sum up, the air-permeable waterproof device of the present invention has the following characteristics.

[0028] (1). Disposition of the air-permeable holes, the bumps of the receiving room, and the air vent holes lets air in the shoe be successfully discharged out to keep the foot sole nice and cool, hence avoiding breeding of germs in the shoe.

[0029] (2). Disposition of the non-return piece in the receiving room lets exterior water be not able to enter into the shoe through the air vent holes and the air-permeable holes, hence keeping the foot sole dry and thus avoiding occurrence of illness.

[0030] (3). Disposition of the air-permeable holes and the air vent holes matched with movable disposition of the non-return piece lets fluid unidirectionally flow out of the shoe from the inside of the shoe, hence keeping the lining comfortable and also lengthening the lifetime of use of the shoe.

[0031] Although the present invention has been described with reference to the preferred embodiment thereof, it will be understood that the invention is not limited to the details thereof. Various substitutions and modifications have been suggested in the foregoing description, and other will occur to those of ordinary skill in the art. Therefore, all such substitutions and modifications are intended to be embraced within the scope of the invention as defined in the appended claims. 

I claim:
 1. An air-permeable waterproof device disposed on a shoe, said shoe having a shoe sole, a top edge of the shoe sole connected with a shoe vamp, said air-permeable waterproof device comprising: an air-permeable wall having air-permeable holes; an air vent wall having air vent holes and bumps, said air vent wall and said air-permeable wall being connected together for forming a receiving room; and a non-return piece disposed in said receiving room between said air-permeable wall and said air vent wall.
 2. The air-permeable waterproof device as claimed in claim 1, wherein said non-return piece is movable in said receiving room, and said non-return piece is shored up by said bumps of said air vent wall for maintaining a passable gap.
 3. The air-permeable waterproof device as claimed in claim 1, wherein said non-return piece is movable in said receiving room, and said non-return piece contacts said air-permeable wall to block said air-permeable holes.
 4. The air-permeable waterproof device as claimed in claim 1, wherein said air-permeable waterproof device is disposed on said shoe vamp of said shoe.
 5. The air-permeable waterproof device as claimed in claim 1, wherein said air-permeable waterproof device is disposed at said shoe sole of said shoe.
 6. The air-permeable waterproof device as claimed in claim 5, wherein said air-permeable waterproof device is integrally formed with said shoe sole.
 7. The air-permeable waterproof device as claimed in claim 5, wherein said shoe sole is opened a hole for installation and fixing of said air-permeable waterproof device. 